Designing Two Control Methods For Active Magnetic Bearing System

Abstract

At the present study, two methods would be presented to control active magnetic bearing. Results of the two methods would be compared and would be simulated using MATLAB Simulating software. Finally, one of the two methods would be proposed as the most efficient method. The methods include 1- adaptive back-stepping control (ABS), which can be applied for controlling linear model of active magnetic bearing (AMB) and 2- pole placement control, which is applicable for controlling system linear model. In both methods, error level around working point can be measured in presence ofimproper external disturbances. Through control using the two methods, it could be indicated that magnetic bearing around work point is asymptotically stable. Simulations indicate efficiency of the control methods properly in presence of external disturbances.